﻿using System;

namespace WinFormsApp8
{
    //搜索为空错误
    internal class TextNullException : Exception
    {
        public TextNullException(string message) : base(message) { }
    }
    //查找过程出现错误的错误
    internal class FindException : Exception
    {
        public FindException(string message) : base(message) { }
    }
}
